T-240 Transposer

Transposition of input CV controlled by triggers or gates.

T-240 Transposer module for Eurorack / Doepfer A100 system

From the top down:

left column
4 input trig/gate jacks + LEDs (@ half brightness if input is active but is not used for current transposition)
ch4 manual button
button for trig/gate mode setting (short) and 1-octave knob range (long press)
button for lowest/summed/last mode setting (short) and 2-octave knob range (long press)

right column
4 transposition knobs
input and output CV jacks

T-240 Transposer allows making transposition of input CV controlled by triggers or gates. Transposition amount for appropriate input is set by knob. Knob range (each channel) can be 1 octave up/down or 2 octaves up/down. Transposition is semitone quantized, knob LED alternately shows semitone selection (+-12 semitones or +-24 semitones).

There are two trig/gate modes: in “gate mode” is CV transposed while input gate(s) is active, in trig mode transposition lasts while another trig comes. Manual button for ch4 allows setting of desired transposition and recall it manually (if zero transposition is selected in the mid knob position then discards transposition).

Input trigs/gates can be evaluated in three modes:

lowest = if two or mode trigs/gates are present together lowest channels is selected for transposition, others are ignored
sum = transpositions from all active channels are summed
last = last trig/gate is taken into account, others are ignored (if two or more trigs/gates begins in exactly same time evaluation of last one is almost random)
Offset trimming: adjust zero CV offset (no transposition) by offset trimmer if needed. Don´t turn the other trimmers.
Overall setting: as first step adjust transposition tracking trimmer (set transposition range to two octaves and check four octaves transposition tuning range using an channel knob – regardless of offset setting), then set no transposition and adjust zero offset by offset trim. As last step adjust input CV tracking.

Width: 8TE/ 8HP/ 40mm
Depth: 45mm /1,8″ max.
Current: 40mA max.

Double check power connection before powering your system please.
„Red strip“ means -12V connector side in Eurorack standards.
In some power distribution systems connector key can be reverted.
In this case cut connector key and plug power connector right way (with respect to red strip) or use different power cable appropriate to your power system.

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